[Equest-users] Equest - adding Heat Recovery to VAVS system

[Bruce Easterbrook]

Hi Ginnie,
IAQ costs money and bringing in fresh outside air to improve it is the 
solution.  Heat recovery depending on your climate doesn't always save 
money but typically if you have hot humid summers or cold winters it 
will.  I would first take a look at your ERV/HRV schedule to make sure 
it isn't running 24/7. You should also check it's relationship with the 
economizers.  It should be off and bypassed when they are running.  You 
only need fresh air for people when they are there occupying the building.
Bruce Easterbrook P.Eng.
Abode Engineering

On 05/06/2013 11:22 AM, Ginnie Schofield wrote:
>
> Equest Users:
>
> In my school model, I have added the Heat Recovery option to my VAVS 
> system in the current model, and it throws results clear out of line, 
> increasing electric power usage almost 3 times, with increased  
> ventilation fan operation and space cooling year round, which 
> shouldn't be necessary in Wyoming.
>
> Looking for methods to modify input and correct these obviously errant 
> results.  There has been some discussion here earlier this week, tried 
> a couple of the suggestions, without acceptable results.  If adding 
> another system to handle the heat recovery or adding smaller heat 
> recover to each zone is the right answer, please share the method for 
> creating the new system in detailed edit mode.
>
> Thank you in advance for your time and suggestions.
>
> *G**INNIE **S**CHOFIELD***
>
> *E**NGINEERING **D**ESIGN **A**SSOCIATES*
>
> (Ph) 307-266-5033   (Fx) 307-234-3805
>
>
>
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